Code

Added get_dns_domains
[gosa.git] / gosa-si / modules / ArpHandler.pm
index 009d23cb5be67ebf6464a30f7979eec31d29f2aa..89871783d747d79998ffbc767882e219dcd58f7f 100644 (file)
@@ -17,6 +17,7 @@ use Data::Dumper;
 
 # Don't start if some of the modules are missing
 my $start_service=1;
+my $lookup_vendor=1;
 BEGIN{
        unless(eval('use Socket qw(PF_INET SOCK_DGRAM inet_ntoa sockaddr_in)')) {
                $start_service=0;
@@ -24,27 +25,30 @@ BEGIN{
        unless(eval('use POE qw(Component::Pcap Component::ArpWatch)')) {
                $start_service=0;
        }
+       unless(eval('use Net::MAC::Vendor')) {
+               $lookup_vendor=0;
+       }
 }
 
 END{}
 
 my ($timeout, $mailto, $mailfrom, $user, $group);
-my ($arp_activ, $arp_interface, $ldap_uri, $ldap_base, $ldap_admin_dn, $ldap_admin_password);
+my ($arp_enabled, $arp_interface, $ldap_uri, $ldap_base, $ldap_admin_dn, $ldap_admin_password);
 my $hosts_database={};
 my $resolver=Net::DNS::Resolver->new;
 my $ldap;
 
 my %cfg_defaults =
 (
-       "arp" => {
-               "arp_activ"           => [\$arp_activ,         "on"],
-               "arp_interface"       => [\$arp_interface,    "all"],
+       "ArpHandler" => {
+               "enabled"           => [\$arp_enabled,         "true"],
+               "interface"       => [\$arp_interface,    "all"],
        },
        "server" => {
-               "ldap_uri"            => [\$ldap_uri,            ""],
-               "ldap_base"           => [\$ldap_base,           ""],
-               "ldap_admin_dn"       => [\$ldap_admin_dn,       ""],
-               "ldap_admin_password" => [\$ldap_admin_password, ""],
+               "ldap-uri"            => [\$ldap_uri,            ""],
+               "ldap-base"           => [\$ldap_base,           ""],
+               "ldap-admin-dn"       => [\$ldap_admin_dn,       ""],
+               "ldap-admin-password" => [\$ldap_admin_password, ""],
        },
 );
 
@@ -76,19 +80,29 @@ sub read_configfile {
 sub get_module_info {
        my @info = (undef,
                undef,
-               undef,
-               undef,
-               "socket",
        );
 
        &read_configfile();
        # Don't start if some of the modules are missing
-       if(($arp_activ eq 'on') && $start_service) {
-               $ldap = Net::LDAP->new($ldap_uri);
-               if (!$ldap) {
-                       &main::daemon_log("Could not connect to LDAP Server at $ldap_uri!\n$@", 1);
+       if(($arp_enabled eq 'true') && $start_service) {
+               if($lookup_vendor) {
+                       eval("Net::MAC::Vendor::load_cache('file:///usr/lib/gosa-si/modules/oui.txt')");
+                       if($@) {
+                               &main::daemon_log("Loading OUI cache file failed! MAC Vendor lookup disabled", 1);
+                               $lookup_vendor=0;
+                       } else {
+                               &main::daemon_log("Loading OUI cache file suceeded!", 6);
+                       }
+               }
+               if(defined($ldap_uri) && length($ldap_uri)>0) {
+                       $ldap = Net::LDAP->new($ldap_uri);
+                       if (!$ldap) {
+                               &main::daemon_log("Could not connect to LDAP Server at $ldap_uri!\n$@", 1);
+                       } else {
+                               $ldap->bind($ldap_admin_dn, password => $ldap_admin_password);
+                       }
                } else {
-                       $ldap->bind($ldap_admin_dn, password => $ldap_admin_password);
+                       $ldap=undef;
                }
 
                # When interface is not configured (or 'all'), start arpwatch on all possible interfaces
@@ -175,24 +189,26 @@ sub got_packet {
                my $ldap_result=&get_host_from_ldap($packet->{source_haddr});
                if(exists($ldap_result->{dn})) {
                        $hosts_database->{$packet->{source_haddr}}=$ldap_result;
+                       $hosts_database->{$packet->{source_haddr}}->{dnsname}= $dnsname;
                        if(!exists($ldap_result->{ipHostNumber})) {
                                $hosts_database->{$packet->{source_haddr}}->{ipHostNumber}=$packet->{source_ipaddr};
                        } else {
                                if(!($ldap_result->{ipHostNumber} eq $packet->{source_ipaddr})) {
                                        &main::daemon_log(
                                                "Current IP Address ".$packet->{source_ipaddr}.
-                                               " of host ".$ldap_result->{dnsname}.
+                                               " of host ".$hosts_database->{$packet->{source_haddr}}->{dnsname}.
                                                " differs from LDAP (".$ldap_result->{ipHostNumber}.")", 4);
                                }
                        }
                        $hosts_database->{$packet->{source_haddr}}->{dnsname}=$dnsname;
-                       &main::daemon_log("Host was found in LDAP as ".$ldap_result->{dn}, 6);
+                       &main::daemon_log("Host was found in LDAP as ".$ldap_result->{dn}, 8);
                } else {
                        $hosts_database->{$packet->{source_haddr}}={
                                macAddress => $packet->{source_haddr},
                                ipHostNumber => $packet->{source_ipaddr},
                                dnsname => $dnsname,
-                               cn => ($dnsname =~ /^(\d){1,3}\.(\d){1,3}\.(\d){1,3}\.(\d){1,3}/) ? $dnsname : sprintf "%s", $dnsname =~ /([^\.]+)\./,
+                               cn => (($dnsname =~ /^(\d){1,3}\.(\d){1,3}\.(\d){1,3}\.(\d){1,3}/) ? $dnsname : sprintf "%s", $dnsname =~ /([^\.]+)\./),
+                               macVendor => (($lookup_vendor) ? &get_vendor_for_mac($packet->{source_haddr}) : "Unknown Vendor"),
                        };
                        &main::daemon_log("Host was not found in LDAP (".($hosts_database->{$packet->{source_haddr}}->{dnsname}).")",6);
                        &main::daemon_log(
@@ -204,8 +220,9 @@ sub got_packet {
                                $ldap_base, 
                                $hosts_database->{$packet->{source_haddr}}->{macAddress},
                                'new-system',
-                               $hosts_database->{$packet->{source_haddr}}->{ipHostNumber});
-                               # TODO add mac vendor as description
+                               $hosts_database->{$packet->{source_haddr}}->{ipHostNumber},
+                               'interface',
+                               $hosts_database->{$packet->{source_haddr}}->{macVendor});
                }
                $hosts_database->{$packet->{source_haddr}}->{device}= $capture_device;
        } else {
@@ -224,7 +241,7 @@ sub got_packet {
                        );
 
                }
-               &main::daemon_log("Host already in cache (".($hosts_database->{$packet->{source_haddr}}->{device})."->".($hosts_database->{$packet->{source_haddr}}->{dnsname}).")",6);
+               &main::daemon_log("Host already in cache (".($hosts_database->{$packet->{source_haddr}}->{device})."->".($hosts_database->{$packet->{source_haddr}}->{dnsname}).")",8);
        }
 } 
 
@@ -232,33 +249,35 @@ sub get_host_from_ldap {
        my $mac=shift;
        my $result={};
                
-       my $ldap_result= &search_ldap_entry(
-               $ldap,
-               $ldap_base,
-               "(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))"
-       );
-
-       if(defined($ldap_result) && $ldap_result->count==1) {
-               if(exists($ldap_result->{entries}[0]) && 
-                       exists($ldap_result->{entries}[0]->{asn}->{objectName}) && 
-                       exists($ldap_result->{entries}[0]->{asn}->{attributes})) {
-
-                       for my $attribute(@{$ldap_result->{entries}[0]->{asn}->{attributes}}) {
-                               if($attribute->{type} eq 'cn') {
-                                       $result->{cn} = $attribute->{vals}[0];
-                               }
-                               if($attribute->{type} eq 'macAddress') {
-                                       $result->{macAddress} = $attribute->{vals}[0];
-                               }
-                               if($attribute->{type} eq 'dhcpHWAddress') {
-                                       $result->{dhcpHWAddress} = $attribute->{vals}[0];
-                               }
-                               if($attribute->{type} eq 'ipHostNumber') {
-                                       $result->{ipHostNumber} = $attribute->{vals}[0];
+       if(defined($ldap)) {
+               my $ldap_result= &search_ldap_entry(
+                       $ldap,
+                       $ldap_base,
+                       "(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))"
+               );
+
+               if(defined($ldap_result) && $ldap_result->count==1) {
+                       if(exists($ldap_result->{entries}[0]) && 
+                               exists($ldap_result->{entries}[0]->{asn}->{objectName}) && 
+                               exists($ldap_result->{entries}[0]->{asn}->{attributes})) {
+
+                               for my $attribute(@{$ldap_result->{entries}[0]->{asn}->{attributes}}) {
+                                       if($attribute->{type} eq 'cn') {
+                                               $result->{cn} = $attribute->{vals}[0];
+                                       }
+                                       if($attribute->{type} eq 'macAddress') {
+                                               $result->{macAddress} = $attribute->{vals}[0];
+                                       }
+                                       if($attribute->{type} eq 'dhcpHWAddress') {
+                                               $result->{dhcpHWAddress} = $attribute->{vals}[0];
+                                       }
+                                       if($attribute->{type} eq 'ipHostNumber') {
+                                               $result->{ipHostNumber} = $attribute->{vals}[0];
+                                       }
                                }
                        }
+                       $result->{dn} = $ldap_result->{entries}[0]->{asn}->{objectName};
                }
-               $result->{dn} = $ldap_result->{entries}[0]->{asn}->{objectName};
        }
 
        return $result;
@@ -327,6 +346,21 @@ sub get_mac {
        return $result;
 }
 
+sub get_vendor_for_mac {
+       my $mac=shift;
+       my $result="Unknown Vendor";
+
+       if(defined($mac)) {
+               my $vendor= Net::MAC::Vendor::fetch_oui_from_cache(Net::MAC::Vendor::normalize_mac($mac));
+               if(length($vendor) > 0) {
+                       $result= @{$vendor}[0];
+               }
+               &main::daemon_log("Looking up Vendor for MAC ".$mac.": $result", 4);
+       }
+
+       return $result;
+}
+
 #===  FUNCTION  ================================================================
 #         NAME:  add_ldap_entry
 #      PURPOSE:  adds an element to ldap-tree
@@ -338,41 +372,45 @@ sub get_mac {
 #     SEE ALSO:  n/a/bin
 #===============================================================================
 sub add_ldap_entry {
-    my ($ldap_tree, $ldap_base, $mac, $gotoSysStatus, $ip, $interface, $desc) = @_;
-    my $dn = "cn=".$hosts_database->{$mac}->{cn}.",ou=incoming,$ldap_base";
-    my $s_res = &search_ldap_entry($ldap_tree, $ldap_base, "(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))");
-    my $c_res = (defined($s_res))?$s_res->count:0;
-    if($c_res == 1) {
-        &main::daemon_log("WARNING: macAddress $mac already in LDAP", 1);
-        return;
-    } elsif($c_res > 0) {
-        &main::daemon_log("ERROR: macAddress $mac exists $c_res times in LDAP", 1);
-        return;
-    }
-
-    # create LDAP entry 
-    my $entry = Net::LDAP::Entry->new( $dn );
-    $entry->dn($dn);
-    $entry->add("objectClass" => "goHard");
-    $entry->add("cn" => $hosts_database->{$mac}->{cn});
-    $entry->add("macAddress" => $mac);
-    if(defined $gotoSysStatus) {$entry->add("gotoSysStatus" => $gotoSysStatus)}
-    if(defined $ip) {$entry->add("ipHostNumber" => $ip) }
-    #if(defined $interface) { }
-    if(defined $desc) {$entry->add("description" => $desc) }
-    
-    # submit entry to LDAP
-    my $result = $entry->update ($ldap_tree); 
-        
-    # for $result->code constants please look at Net::LDAP::Constant
-    if($result->code == 68) {   # entry already exists 
-        &main::daemon_log("WARNING: $dn ".$result->error, 3);
-    } elsif($result->code == 0) {   # everything went fine
-        &main::daemon_log("add entry $dn to ldap", 1);
-    } else {  # if any other error occur
-        &main::daemon_log("ERROR: $dn, ".$result->code.", ".$result->error, 1);
-    }
-    return;
+       my ($ldap_tree, $ldap_base, $mac, $gotoSysStatus, $ip, $interface, $desc) = @_;
+       if(defined($ldap_tree)) {
+               my $dn = "cn=".$hosts_database->{$mac}->{cn}.",ou=incoming,$ldap_base";
+               my $s_res = &search_ldap_entry($ldap_tree, $ldap_base, "(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))");
+               my $c_res = (defined($s_res))?$s_res->count:0;
+               if($c_res == 1) {
+                       &main::daemon_log("WARNING: macAddress $mac already in LDAP", 1);
+                       return;
+               } elsif($c_res > 0) {
+                       &main::daemon_log("ERROR: macAddress $mac exists $c_res times in LDAP", 1);
+                       return;
+               }
+
+               # create LDAP entry 
+               my $entry = Net::LDAP::Entry->new( $dn );
+               $entry->dn($dn);
+               $entry->add("objectClass" => "goHard");
+               $entry->add("cn" => $hosts_database->{$mac}->{cn});
+               $entry->add("macAddress" => $mac);
+               if(defined $gotoSysStatus) {$entry->add("gotoSysStatus" => $gotoSysStatus)}
+               if(defined $ip) {$entry->add("ipHostNumber" => $ip) }
+               #if(defined $interface) { }
+               if(defined $desc) {$entry->add("description" => $desc) }
+
+               # submit entry to LDAP
+               my $result = $entry->update ($ldap_tree); 
+
+               # for $result->code constants please look at Net::LDAP::Constant
+               if($result->code == 68) {   # entry already exists 
+                       &main::daemon_log("WARNING: $dn ".$result->error, 3);
+               } elsif($result->code == 0) {   # everything went fine
+                       &main::daemon_log("add entry $dn to ldap", 1);
+               } else {  # if any other error occur
+                       &main::daemon_log("ERROR: $dn, ".$result->code.", ".$result->error, 1);
+               }
+       } else {
+               &main::daemon_log("Not adding new Entry: LDAP disabled", 6);
+       }
+       return;
 }
 
 
@@ -387,39 +425,43 @@ sub add_ldap_entry {
 #     SEE ALSO:  n/a
 #===============================================================================
 sub change_ldap_entry {
-    my ($ldap_tree, $ldap_base, $mac, $gotoSysStatus, $ip) = @_;
-    
-    # check if ldap_entry exists or not
-    my $s_res = &search_ldap_entry($ldap_tree, $ldap_base, "(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))");
-    my $c_res = (defined $s_res)?$s_res->count:0;
-    if($c_res == 0) {
-        &main::daemon_log("WARNING: macAddress $mac not in LDAP", 1);
-        return;
-    } elsif($c_res > 1) {
-        &main::daemon_log("ERROR: macAddress $mac exists $c_res times in LDAP", 1);
-        return;
-    }
-
-    my $s_res_entry = $s_res->pop_entry();
-    my $dn = $s_res_entry->dn();
-       my $replace = {
-               'gotoSysStatus' => $gotoSysStatus,
-       };
-       if (defined($ip)) {
-               $replace->{'ip'} = $ip;
+       my ($ldap_tree, $ldap_base, $mac, $gotoSysStatus, $ip) = @_;
+
+       if(defined($ldap_tree)) {
+               # check if ldap_entry exists or not
+               my $s_res = &search_ldap_entry($ldap_tree, $ldap_base, "(|(macAddress=$mac)(dhcpHWAddress=ethernet $mac))");
+               my $c_res = (defined $s_res)?$s_res->count:0;
+               if($c_res == 0) {
+                       &main::daemon_log("WARNING: macAddress $mac not in LDAP", 1);
+                       return;
+               } elsif($c_res > 1) {
+                       &main::daemon_log("ERROR: macAddress $mac exists $c_res times in LDAP", 1);
+                       return;
+               }
+
+               my $s_res_entry = $s_res->pop_entry();
+               my $dn = $s_res_entry->dn();
+               my $replace = {
+                       'gotoSysStatus' => $gotoSysStatus,
+               };
+               if (defined($ip)) {
+                       $replace->{'ipHostNumber'} = $ip;
+               }
+               my $result = $ldap->modify( $dn, replace => $replace );
+
+               # for $result->code constants please look at Net::LDAP::Constant
+               if($result->code == 32) {   # entry doesnt exists 
+                       &add_ldap_entry($mac, $gotoSysStatus);
+               } elsif($result->code == 0) {   # everything went fine
+                       &main::daemon_log("entry $dn changed successful", 1);
+               } else {  # if any other error occur
+                       &main::daemon_log("ERROR: $dn, ".$result->code.", ".$result->error, 1);
+               }
+       } else {
+               &main::daemon_log("Not changing Entry: LDAP disabled", 6);
        }
-    my $result = $ldap->modify( $dn, replace => $replace );
-
-    # for $result->code constants please look at Net::LDAP::Constant
-    if($result->code == 32) {   # entry doesnt exists 
-        &add_ldap_entry($mac, $gotoSysStatus);
-    } elsif($result->code == 0) {   # everything went fine
-        &main::daemon_log("entry $dn changed successful", 1);
-    } else {  # if any other error occur
-        &main::daemon_log("ERROR: $dn, ".$result->code.", ".$result->error, 1);
-    }
-
-    return;
+
+       return;
 }
 
 #===  FUNCTION  ================================================================